This is a continual issue for this model, I've gone through at least 3 sets of rotors (including aftermarket upgrades) and they have each been machined multiple times. Every time the work is done the brakes work fine for a few thousand miles, but they eventually warp back up again. My mechanic told me that ultimately the rotors need to be larger as the OEM size is just not large enough to properly dissipate heat from hard stops.